WO2007126223A1 - Procédé et appareil pour générer un adresse locale unique ipv6 - Google Patents

Procédé et appareil pour générer un adresse locale unique ipv6 Download PDF

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Publication number
WO2007126223A1
WO2007126223A1 PCT/KR2007/001795 KR2007001795W WO2007126223A1 WO 2007126223 A1 WO2007126223 A1 WO 2007126223A1 KR 2007001795 W KR2007001795 W KR 2007001795W WO 2007126223 A1 WO2007126223 A1 WO 2007126223A1
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WO
WIPO (PCT)
Prior art keywords
bit
eui
value
generating
ula
Prior art date
Application number
PCT/KR2007/001795
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English (en)
Inventor
Soo-Hong Park
Cheol-Ju Hwang
Original Assignee
Samsung Electronics Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co., Ltd. filed Critical Samsung Electronics Co., Ltd.
Priority to BRPI0707865-0A priority Critical patent/BRPI0707865A2/pt
Publication of WO2007126223A1 publication Critical patent/WO2007126223A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5092—Address allocation by self-assignment, e.g. picking addresses at random and testing if they are already in use
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5038—Address allocation for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/604—Address structures or formats
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/659—Internet protocol version 6 [IPv6] addresses

Definitions

  • IPv6 Internet protocol version 6
  • UUA IPv6 unique local address
  • IPv6 uses an IPv6 global address, an IPv6 link local address, and the like.
  • the IPv6 global address must be uniquely designated in an entire IPv6 address system, whereas the IPv6 link local address need only be uniquely designated in each link.
  • An IPv6 unique local address (ULA) is required to be uniquely designated in the entire IPv6 address system although the IPv6 unique local address is only used in a local area.
  • Request for comments (RFC) 4193 provides regulations for the generation of the
  • IPv6 ULA According to RFC 4193, the IPv6 ULA is generated using a network time protocol (NTP) and is uniquely designated in the entire IPv6 address system. The NTP is used to synchronize time of network terminals. [6] However, the IPv6 ULA is not generated according to RFC 4193 in a home network that does not support technology using the NTP.
  • NTP network time protocol
  • IPv6 unique local address (ULA) having uniqueness without need for the network time protocol (NTP).
  • NTP network time protocol
  • a global ID is generated using unique information on an UPnP device and an interface device and the IPv6 ULA is generated using the global ID, thereby generating the IPv6 ULA having uniqueness in an entire IPv6 address system without an NTP.
  • FIG. 1 is a diagram of an IPv6 unique local address (ULA), according to an example embodiment of the present invention
  • FIG. 2 is a diagram an example link using an IPV6 link local address according to an example embodiment of the present invention
  • FIG. 3 is a diagram of an example site using an IPv6 ULA according to an example embodiment of the present invention.
  • FIG. 4 is a flowchart of a method of generating an IPv6 ULA according to an example embodiment of the present invention
  • FIG. 5 is a flowchart of a method of generating an IPv6 ULA according to another example embodiment of the present invention.
  • FIG. 6A is a diagram of a EUI-64 of an interface device according to another example embodiment of the present invention.
  • FIG. 6B is a diagram of a modified EUI-64 using the EUI-64 according to another example embodiment of the present invention.
  • FIG. 7 A is a diagram of a MAC address according to another example embodiment of the present invention.
  • FIG. 7B is a diagram of a modified EUI-64 using the MAC address according to another example embodiment of the present invention.
  • a method of generating an IPv6 unique local address comprising: generating a 64-bit first value using unique information on a universal plug and play (UPnP) device used by a router; generating a modified 64-bit extended unique identifier (EUI-64) using unique information on an interface device used by the router; generating a 128-bit second value by concatenating the 64-bit first value and the modified EUI-64; generating a 160-bit third value by applying secure hash algorithm-1 (SHA-I) to the 128-bit second value; and generating a global ID by extracting 40 bits from the 160-bit third value.
  • UPA IPv6 unique local address
  • an apparatus for generating an IPv6 ULA comprising: a first value generator to generate a 64-bit first value using unique information on a UPnP device used by a router; a modified EUI-64 generator to generate a modified EUI-64 using unique information on an interface device used by the router; a second value generator to generate a 128-bit second value by concatenating the 64-bit first value and the modified EUI-64; a SHA-I application unit to generate a 160-bit third value by applying SHA-I to the 128-bit second value; and a global ID generator to generate a global ID by extracting 40 bits from the 160-bit third value.
  • FIG. 1 is a diagram of an IPv6 ULA, according to an example embodiment of the present invention.
  • the IPv6 ULA is part of a header in a data packet for transmission in a network.
  • the IPv6 ULA comprises a prefix 10, an L bit 12, a global ID 14, a subnet ID 16, and an interface ID 18.
  • the ULA prefix is an IPv6 prefix in the IPv6 ULA. Therefore, the IPv6 ULA of the current embodiment of the present invention meets the requirement that an IPv6 address comprises the IPv6 prefix and the interface ID 18.
  • the prefix 10 indicates that an address a unique local address (ULA).
  • the prefix 10 has a value of "FCOO: :/7" indicating that the prefix 10 has 7 bits and a value of "1111110" according to provisions defined in RFC 3513 for describing an IPv6 address.
  • an IPv6 link local address has a value of "FE80::/10" indicating that the prefix 10 has a value of "1111111010".
  • the L bit 12 indicates that the IPv6 prefix is designated at a local site.
  • An IPv6 global address uses a global routing prefix allocated by an institute that manages the IPv6 address, whereas the IPV6 ULA is designated at the local site. Therefore, the L bit 12 has a value of 1.
  • the global ID 14 has a 40-bit value that may be generated using a method described below.
  • the subnet ID 16 indicates an ID of a subnet including a router (not shown) at a site where the IPv6 ULA is used and has a 16-bit value.
  • the interface ID 18 indicates an ID of a host device that receives an ULA prefix from the router and has a 64-bit value.
  • FIG. 2 is a diagram of a link 20 that uses an IPv6 link local address.
  • the link 20 is a part of a network comprising a router 22 and a plurality of hosts. Since the hosts can directly communicate data in the link 20, the hosts do not necessarily pass through the router 22. Therefore, the hosts communicate using the IPv6 link local address in the link 20.
  • FIG. 3 is a diagram of a site 30 that uses an IPv6 ULA. Referring to FIG. 3, the site
  • the IPv6 ULA of the present invention is used in a site or a set of sites. For convenience, the IPv6 ULA that is used in the site 30 will now be described.
  • the site 30 can comprise a router 36 that connects networks inside and outside the site 30.
  • a router 34 of the link 32 including a transmission host checks a data packet and determines that the link 32 does not comprise a reception host.
  • the router 34 transmits the data packet to external links. Therefore, an IPv6 link local address cannot be used to communicate data between the hosts that are included in the site 30 but are in different links.
  • the IPv6 ULA is used to communicate data between the hosts.
  • FIG. 4 is a flowchart of a method of generating an IPv6 ULA according to an example embodiment of the present invention.
  • a 64-bit first value is generated using unique information on a universal plug and play (UPnP) device in a router (or other system) that generates the IPv6 ULA (Operation 100).
  • UUID universal unique identifier
  • upper 64 bits or other 64 bits can be used to generate the 64-bit first value.
  • Other aspects of the present invention that use non-UPnP devices may use other types of unique information to extract a unique identifier, such as a device serial number.
  • the method may be performed by any system needing to create an IPv6 ULA global prefix.
  • the method of generating the IPv6 ULA of the current embodiment of the present invention uses the unique information on the UPnP device instead of a value of a network time protocol (NTP), it is possible to generate the IPv6 ULA having uniqueness without using NTP. Further, the method of generating the IPv6 ULA can be applied using the NTP.
  • NTP network time protocol
  • a router generates modified extended unique identifier (EUI)-64 information
  • the modified EUI-64 information is a 64-bit value generated using a [38] If the interface device has the EUI-64, the router (or other system) generates the modified EUI-64 using the EUI-64 of the interface device. If the interface device does not have the EUI-64, the router generates the modified EUI-64 using the MAC address of the router. Other aspects of the present invention may utilize other unique information of the router, such as a serial number, if the interface device does not have an EUI-64. The generation of the modified EUI-64 according to the present invention will be described with reference to FIGS. 6 and 7.
  • a 128-bit second value is generated using a concatenation of the 64-bit first value and the 64-bit modified EUI-64 (Operation 120).
  • SHA-I 160-bit third value (Operation 130).
  • SHA-I is an encoding algorithm developed by the National Institute of Standards and Technology (NIST). The SHA-I reduces a 264-bit below message to a 160-bit message.
  • FIG. 5 is a flowchart of a method of generating an IPv6 ULA according to another embodiment of the present invention.
  • a router or other system
  • the router combines a prefix having a value of "FCOO: :/7", an L bit having a value of "1", the global ID, and a previously allocated subnet ID, and generates an ULA prefix (Operation 210).
  • the router transmits the generated ULA prefix to a host (Operation 220).
  • the router includes the ULA prefix in a router advertisement (RA) message and transmits the RA message to the host.
  • RA router advertisement
  • the router If the subnet uses a dynamic host configuration protocol version 6 (DHCPv ⁇ ), the router includes the ULA prefix in a DHCPv ⁇ option and transmits the DHCPv ⁇ option to the host.
  • DHCPv ⁇ dynamic host configuration protocol version 6
  • the host that receives the ULA prefix generates a 64-bit interface ID, combines the
  • the IPv6 ULA is used after an address redundancy check process is performed.
  • the address redundancy check process transmits a broadcasted message to devices in a link or a site.
  • FIG. 6A is a diagram of an EUI-64 of an interface device.
  • FIG. 6B is a diagram of a modified EUI-64 using the EUI-64. Referring to FIG. 6A, the modified EUI-64 is generated when the interface device has an EUI-64.
  • the EUI-64 of the interface device comprises a EUI-64 company ID 40 and a EUI-
  • the EUI-64 company ID 40 is a 24-bit value of a company of the interface device allocated by the IEEE registration institute.
  • the EUI-64manufacturer-selected extension identifier 42 is a value that the company of the interface device, such as the interface device's manufacturer, allocates to the interface device. Therefore, the EUI-64 of the interface device has a sole value.
  • a seventh bit 44 of the EUI-64 company ID 40 is a universal/local bit, as shown in
  • the universal/local bit must be designated as 1 pursuant to the IEEE EUI-64 standard.
  • the interface device has the EUI-64
  • the EUI-64 illustrated in FIG. 6A is selected as a temporary EUI-64
  • a seventh bit of the temporary EUI-64 is designated as 1 (46).
  • FIG. 7 A is a diagram of a MAC address.
  • FIG. 7B is a diagram of a modified EUI-
  • the modified EUI-64 is generated when an interface device does not have an EUI-64.
  • other numbers unique to the router such as a serial number, may be used if the interface device does not have an EUI-64.
  • the MAC address comprises a MAC company ID 50 and a MAC vendor supplied
  • the MAC company ID 50 is a 24-bit value that the BEE registration institute allocates to a company of the interface device.
  • the MAC vendor supplied ID 52 is a value that the company of the interface device allocates to the interface device. Therefore, the MAC address of the interface device has a sole value.
  • the 2-octet value is a fill-in octet 54.
  • the fill-in octet 54 having values of "FF" and "FE” is inserted into the MAC company ID 50 and the MAC vendor supplied ID 52 to generate a temporal EUI-64. Any value may be used for the fill-in octet.
  • a seventh bit value of the temporarary EUI-64 is designated as "1".
  • a method of generating an IPv6 ULA according to the present invention uses a EUI-64 that is unique address of an interface device or a MAC address, a unique IPv6 ULA can be generated.
  • the invention can also be embodied as computer (including any device that has an information processing function) readable codes on a computer readable recording medium.
  • the computer readable recording medium is any data storage device that can store data which can be thereafter read by a computer system. Examples of the computer readable recording medium include read-only memory (ROM), random- access memory (RAM), CD-ROMs, magnetic tapes, floppy disks, and optical data storage devices.
  • Hardware modules may include a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC).
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • Software modules can be written in a variety of software languages, including C, C++, Java, Visual Basic, and others. Accordingly, it is intended, therefore, that the present invention not be limited to the various example embodiments disclosed, but that the present invention includes all embodiments falling within the scope of the appended claims.

Abstract

L'invention concerne un procédé et un appareil pour générer une adresse locale unique (ULA) IPv6. Ce procédé consiste à générer une première valeur de 64 octets à l'aide d'informations uniques sur un dispositif UPnP utilisé par un routeur; générer un EUI-64 de 64 octets à l'aide d'informations uniques sur un dispositif d'interface utilisé par le routeur; générer une seconde valeur de 128 octets par la concaténation de la première valeur de 64 octets et de l'EUI-64 modifié; générer une troisième valeur de 160 octets par l'application de SHA1 à la seconde valeur de 128 octets; et générer une identification globale par l'extraction de 40 octets à la troisième valeur de 160 octets. Une identification globale est générée à l'aide d'informations uniques sur un dispositif UPnP et sur un dispositif d'interface, et l'ULA IPv6 est généré à l'aide de l'identification globale, ce qui permet de générer l'ULA IPv6 de sorte qu'elle présente un caractère unique dans un système d'adresse IPV6 complet, sans NTP.
PCT/KR2007/001795 2006-04-28 2007-04-13 Procédé et appareil pour générer un adresse locale unique ipv6 WO2007126223A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0707865-0A BRPI0707865A2 (pt) 2006-04-28 2007-04-13 mÉtodo para geraÇço de um endereÇo local exclusivo em protocolo ipv6, dispositivo de rede para geraÇço de um endereÇo local exclusivo de protocolo ipv6, e mÍdia passÍvel de leitura por computador

Applications Claiming Priority (2)

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KR20060039004A KR100728040B1 (ko) 2006-04-28 2006-04-28 ＩＰｖ6 유니크 로컬 주소 생성 방법 및 장치
KR10-2006-0039004 2006-04-28

Publications (1)

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WO2007126223A1 true WO2007126223A1 (fr) 2007-11-08

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US (1) US20070253431A1 (fr)
EP (1) EP1850561A1 (fr)
JP (1) JP2007300608A (fr)
KR (1) KR100728040B1 (fr)
CN (1) CN101064723A (fr)
BR (1) BRPI0707865A2 (fr)
RU (1) RU2008135964A (fr)
TW (1) TW200742351A (fr)
WO (1) WO2007126223A1 (fr)

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CN101064723A (zh) 2007-10-31
BRPI0707865A2 (pt) 2011-05-10
KR100728040B1 (ko) 2007-06-13
JP2007300608A (ja) 2007-11-15
RU2008135964A (ru) 2010-03-10
EP1850561A1 (fr) 2007-10-31
TW200742351A (en) 2007-11-01
US20070253431A1 (en) 2007-11-01

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